A Case Study on using CPML and PML Boundary Conditions in FDTD for RCS Calculation

Abstract

Perfect Matched Layer (PML) and Convolutional PML boundary conditions are used in FDTD for Radar Cross Section (RCS) calculation of a perfect electric conducting (PEC) sphere. Matlab is used for coding the FDTD. The results obtained are compared with that of results obtained using FEKO full-wave electromagnetic simulation software. It is seen that the CPML boundary condition takes less simulation time with the smaller computational domain without compromising accuracy.